Issue Description:

I was not able to reproduce this crash, but I figured it is worth reporting anyway.

Steps to reproduce:

1. Exit end portal.

Additional Information:

http://openeye.openmods.info/crashes/e251f4ab9c3a91388299edc7c1e6a905

Affected Versions (Exact numbers, do NOT use "latest"):

• Biomes O' Plenty: 7.0.1
• Minecraft: 1.12.2
• Forge: 14.23.5.2815
• Recurrent Complex; 1.4.7

Ivorforce/RecurrentComplex#380

https://pastebin.com/iXp8SFgP

i've had the same happen to my server.
happened once, not been able to reproduce so far

same bop, mc, and forge versions

Closing this because we either can't/won't fix it or it's not an issue in 1.13